LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Power steering fluid flush

Old 05-17-19, 09:05 PM
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Default Power steering fluid flush

To complete flush the oil out of your power steering system take the protective shield off and get to the power steering rack lines ( red arrow ),
Squeeze the hose clamp and move it on the metal portion of the line, whit twisting motions pull the rubber hose of the metal line make sure you have a oil pan handy.
Open the oil reservoir and let the oil drain out of the system it my take 15 minutes, reattach the line and fill whit fresh oil, it my take a minute for the oil to go down into the rack, start the car and add oil util you don't hear the pump winding move wheels left - right , fill oil up to the line.
If oil was dirty repeat the flush.
The picture of the yellow oil pan it's to show the amount of oil it came out in 15 minutes.
I made a small youtube film to watch hope this helps.

If this method was shown before please advise and I delete the posting , thank you !

Last edited by razvy; 05-17-19 at 09:16 PM.
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Old 05-18-19, 06:23 PM
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Good tip.
I think if I were going to break the seal of a 14+ yr old hose I would just spend an extra $3 and replace the hose while you're in there.
Then, of course, you have to deal with the 3/8" vs 10mm ID debacle...

You can also accomplish this by removing the PPS solenoid which, IIRC, is the lowest port (aka opening) in the PS system.
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Old 05-18-19, 07:58 PM
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Mine was leaking at the same hoes due to heat it got all dried up it was pretty hard to pull off so i had to cut it with a blade cheap cost to replace and easy to drain the ps fluid from
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Old 05-19-19, 10:22 AM
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My hose is in good shape , looks like somebody else change them prior ..
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